fix: Parent Task link with Project Task

[s-aga-r]

Source / Ref: 883

Problem: When you have Tasks with Parent and Common Name in a Project Template, creating a Project against the template will not link the 2nd..nth Project Tasks with the Parent i.e., only the first Task in a group of Tasks with same name will have the Parent mapped.

• In the below image, Task TASK-2023-00116 and TASK-2023-00120 have the same subject. When we create a Project for this template only the Task TASK-2023-00116 will be linked with the Parent Task.

  

Solution: Currently, the Subject is used as a key to find the Template Item for a Project Task. Added a new field in Task to hold the reference of Template Task in Project Task, which will be used to find the Template Task while setting up the dependencies.

Before:

scrnli_9_11_2023_5-31-26.PM.mp4

After:

scrnli_9_11_2023_5-35-28.PM.mp4

[codecov]

Codecov Report

Merging #37025 (0d5c8f0) into develop (175870c) will increase coverage by 0.19%.
Report is 24 commits behind head on develop.
The diff coverage is 68.57%.

@@             Coverage Diff             @@
##           develop   #37025      +/-   ##
===========================================
+ Coverage    65.74%   65.93%   +0.19%     
===========================================
  Files          796      796              
  Lines        62730    62756      +26     
===========================================
+ Hits         41244    41381     +137     
+ Misses       21486    21375     -111     

Files Changed	Coverage
.../report/accounts_receivable/accounts_receivable.py	50.00%
erpnext/projects/doctype/project/project.py	66.66%
...rpnext/stock/report/stock_balance/stock_balance.py	66.66%
...ounts/doctype/purchase_invoice/purchase_invoice.py	69.56%
...stock/doctype/material_request/material_request.py	100.00%